[Bug c++/68941] New: ice in vect_analyze_stmt, at tree-vect-stmts.c:8013

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68941

            Bug ID: 68941
           Summary: ice in vect_analyze_stmt, at tree-vect-stmts.c:8013
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

Created attachment 37048
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37048&action=edit
gzipped C++ source code

The attached code, compiled with -O3 -fno-exceptions, on gcc trunk
dated 20151216, does this

$ ../results/bin/g++ -c -O3 -fno-exceptions bug257.cc
../../../src/qtui/columnhandleitem.cpp: In member function ‘void
ColumnHandleItem::setXPos(qreal)’:
../../../src/qtui/columnhandleitem.cpp:55:6: internal compiler error: in
vect_analyze_stmt, at tree-vect-stmts.c:8013

0x101c783 vect_analyze_stmt(gimple*, bool*, _slp_tree*)
        ../../src/trunk/gcc/tree-vect-stmts.c:8013
0x103229a vect_slp_analyze_node_operations
        ../../src/trunk/gcc/tree-vect-slp.c:2225
0x103218b vect_slp_analyze_node_operations
        ../../src/trunk/gcc/tree-vect-slp.c:2209
0x10369cc vect_slp_analyze_operations(vec<_slp_instance*, va_heap, vl_ptr>,
void*)
        ../../src/trunk/gcc/tree-vect-slp.c:2257
0x103b578 vect_slp_analyze_bb_1
        ../../src/trunk/gcc/tree-vect-slp.c:2531
0x103b578 vect_slp_bb(basic_block_def*)
        ../../src/trunk/gcc/tree-vect-slp.c:2618
0x103da6d execute
        ../../src/trunk/gcc/tree-vectorizer.c:759
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with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
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